DE MATTOS, Denise; DOS SANTOS, Edivaldo L. On nonsymmetric theorems for $(H,G)$-coincidences. Topological Methods in Nonlinear Analysis, [S. l.], v. 33, n. 1, p. 105–119, 2009. Disponível em: https://apcz.umk.pl/TMNA/article/view/TMNA.2009.008. Acesso em: 4 jul. 2025.